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<pre><span class="comment"> /****************************************************************************
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 #include &quot;bencodeparser.h&quot;
 #include &quot;metainfo.h&quot;

 #include &lt;QDateTime&gt;
 #include &lt;QMetaType&gt;
 #include &lt;QString&gt;

 MetaInfo::MetaInfo()
 {
     clear();
 }

 void MetaInfo::clear()
 {
     errString = &quot;Unknown error&quot;;
     content.clear();
     infoData.clear();
     metaInfoMultiFiles.clear();
     metaInfoAnnounce.clear();
     metaInfoAnnounceList.clear();
     metaInfoCreationDate = QDateTime();
     metaInfoComment.clear();
     metaInfoCreatedBy.clear();
     metaInfoName.clear();
     metaInfoPieceLength = 0;
     metaInfoSha1Sums.clear();
 }

 bool MetaInfo::parse(const QByteArray &amp;data)
 {
     clear();
     content = data;

     BencodeParser parser;
     if (!parser.parse(content)) {
         errString = parser.errorString();
         return false;
     }

     infoData = parser.infoSection();

     QMap&lt;QByteArray, QVariant&gt; dict = parser.dictionary();
     if (!dict.contains(&quot;info&quot;))
         return false;

     QMap&lt;QByteArray, QVariant&gt; info = qVariantValue&lt;Dictionary&gt;(dict.value(&quot;info&quot;));

     if (info.contains(&quot;files&quot;)) {
         metaInfoFileForm = MultiFileForm;

         QList&lt;QVariant&gt; files = info.value(&quot;files&quot;).toList();

         for (int i = 0; i &lt; files.size(); ++i) {
             QMap&lt;QByteArray, QVariant&gt; file = qVariantValue&lt;Dictionary&gt;(files.at(i));
             QList&lt;QVariant&gt; pathElements = file.value(&quot;path&quot;).toList();
             QByteArray path;
             foreach (QVariant p, pathElements) {
                 if (!path.isEmpty())
                     path += &quot;/&quot;;
                 path += p.toByteArray();
             }

             MetaInfoMultiFile multiFile;
             multiFile.length = file.value(&quot;length&quot;).toLongLong();
             multiFile.path = QString::fromUtf8(path);
             multiFile.md5sum = file.value(&quot;md5sum&quot;).toByteArray();
             metaInfoMultiFiles &lt;&lt; multiFile;
         }

         metaInfoName = QString::fromUtf8(info.value(&quot;name&quot;).toByteArray());
         metaInfoPieceLength = info.value(&quot;piece length&quot;).toInt();
         QByteArray pieces = info.value(&quot;pieces&quot;).toByteArray();
         for (int i = 0; i &lt; pieces.size(); i += 20)
             metaInfoSha1Sums &lt;&lt; pieces.mid(i, 20);
     } else if (info.contains(&quot;length&quot;)) {
         metaInfoFileForm = SingleFileForm;
         metaInfoSingleFile.length = info.value(&quot;length&quot;).toLongLong();
         metaInfoSingleFile.md5sum = info.value(&quot;md5sum&quot;).toByteArray();
         metaInfoSingleFile.name = QString::fromUtf8(info.value(&quot;name&quot;).toByteArray());
         metaInfoSingleFile.pieceLength = info.value(&quot;piece length&quot;).toInt();

         QByteArray pieces = info.value(&quot;pieces&quot;).toByteArray();
         for (int i = 0; i &lt; pieces.size(); i += 20)
             metaInfoSingleFile.sha1Sums &lt;&lt; pieces.mid(i, 20);
     }

     metaInfoAnnounce = QString::fromUtf8(dict.value(&quot;announce&quot;).toByteArray());

     if (dict.contains(&quot;announce-list&quot;)) {
         <span class="comment">//</span> ### unimplemented
     }

     if (dict.contains(&quot;creation date&quot;))
         metaInfoCreationDate.setTime_t(dict.value(&quot;creation date&quot;).toInt());
     if (dict.contains(&quot;comment&quot;))
         metaInfoComment = QString::fromUtf8(dict.value(&quot;comment&quot;).toByteArray());
     if (dict.contains(&quot;created by&quot;))
         metaInfoCreatedBy = QString::fromUtf8(dict.value(&quot;created by&quot;).toByteArray());

     return true;
 }

 QByteArray MetaInfo::infoValue() const
 {
     return infoData;
 }

 QString MetaInfo::errorString() const
 {
     return errString;
 }

 MetaInfo::FileForm MetaInfo::fileForm() const
 {
     return metaInfoFileForm;
 }

 QString MetaInfo::announceUrl() const
 {
     return metaInfoAnnounce;
 }

 QStringList MetaInfo::announceList() const
 {
     return metaInfoAnnounceList;
 }

 QDateTime MetaInfo::creationDate() const
 {
     return metaInfoCreationDate;
 }

 QString MetaInfo::comment() const
 {
     return metaInfoComment;
 }

 QString MetaInfo::createdBy() const
 {
     return metaInfoCreatedBy;
 }

 MetaInfoSingleFile MetaInfo::singleFile() const
 {
     return metaInfoSingleFile;
 }

 QList&lt;MetaInfoMultiFile&gt; MetaInfo::multiFiles() const
 {
     return metaInfoMultiFiles;
 }

 QString MetaInfo::name() const
 {
     return metaInfoName;
 }

 int MetaInfo::pieceLength() const
 {
     return metaInfoPieceLength;
 }

 QList&lt;QByteArray&gt; MetaInfo::sha1Sums() const
 {
     return metaInfoSha1Sums;
 }

 qint64 MetaInfo::totalSize() const
 {
     if (fileForm() == SingleFileForm)
         return singleFile().length;

     qint64 size = 0;
     foreach (MetaInfoMultiFile file, multiFiles())
         size += file.length;
     return size;
 }</pre>
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